Abstract: Under the background of global promotion of “peak carbon dioxide emissions and carbon neutrality”,green transformation and efficient development of offshore oil and gas fields are important issues in the current energy industry. General and unconventional energy-saving technologies in offshore oil and gas fields are described. The innovative application of Internet of Things （IoT） in the intelligent construction of offshore oil and gas fields are discussed. Combined with big data and artificial intelligence technology,how to adopt intelligent means for personnel supervision,equipment monitoring and scene monitoring are analyzed. The corresponding transformation plan is put forward to improve the energy-saving efficiency and management intelligence of offshore oil and gas fields.

Key words: offshore oil and gas field, energy-saving technology, Internet of Things, big data, artificial intelligence